For 15 years, IntelliDent's paintless dent repair has smoothed away dings without damaging original factory finishes. The specialty technique relies on massaging exteriors from the inside, which activates the metal's memory and restores it to its initial shape. The eco-friendly process can remove dings between the size of a dime and a half dollar that were caused by hail and forays into car acupuncture. Typical full-body hail-repair jobs take about four to seven days and range from $2,000 to $8,000, depending on the extent of the damage. This deal can be used in conjunction with insurance to offset drivers' deductibles. See the fine print for more details.